:root{
  --web-red:#E01A22;
  --sky-blue:#1B6CE0;
  --ink:#0B0B0F;
  --paper:#F4E9C1;
  --pow:#FFC400;
  --azure:#12B5E5;
  --crimson:#9E1216;
  --container:min(1200px,92vw);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--ink);
  color:#fff;
  font-family:'Inter',system-ui,sans-serif;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ░░ SCROLL PROGRESS WEB ░░ */
.scroll-web{position:fixed;top:0;left:0;height:4px;width:100%;z-index:200;background:rgba(255,255,255,.06)}
.scroll-web__fill{display:block;height:100%;width:0%;
  background:linear-gradient(90deg,var(--web-red),var(--pow),var(--sky-blue));
  box-shadow:0 0 12px var(--pow)}

/* ░░ NAV ░░ */
.nav{position:fixed;top:0;left:0;width:100%;z-index:150;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px clamp(18px,4vw,44px);
  background:rgba(11,11,15,.35);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .3s,padding .3s}
.nav.scrolled{background:rgba(11,11,15,.82);padding-top:11px;padding-bottom:11px}
.nav__brand{font-family:'Anton',sans-serif;font-size:clamp(20px,2.4vw,26px);letter-spacing:1px;display:flex;align-items:center;gap:8px}
.nav__spider{filter:drop-shadow(0 0 6px var(--web-red))}
.nav__brand-accent{color:var(--web-red)}
.nav__links{display:flex;gap:26px;list-style:none}
.nav__links a{font-weight:600;font-size:14px;letter-spacing:1.5px;text-transform:uppercase;opacity:.82;position:relative;transition:opacity .2s}
.nav__links a::after{content:'';position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--web-red);transition:width .25s}
.nav__links a:hover{opacity:1}
.nav__links a:hover::after{width:100%}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav__toggle span{width:26px;height:3px;background:#fff;border-radius:3px;transition:.3s}
.nav__toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav__toggle.open span:nth-child(2){opacity:0}
.nav__toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ░░ HERO ░░ */
.hero{position:relative;height:100vh;min-height:640px;overflow:hidden;display:flex;align-items:center;justify-content:center;text-align:center}
.hero__bg{position:absolute;inset:-10% -5%;background:url('../assets/hero-city-background.png') center/cover no-repeat;transform:scale(1.1);will-change:transform}
.hero__scrim{position:absolute;inset:0;background:
  radial-gradient(circle at 50% 40%,transparent 0%,rgba(11,11,15,.35) 55%,rgba(11,11,15,.92) 100%),
  linear-gradient(180deg,rgba(11,11,15,.55),rgba(11,11,15,.2) 40%,rgba(11,11,15,.95))}
.hero__inner{position:relative;z-index:3;padding:0 20px;max-width:960px}
.hero__eyebrow{font-family:'Anton',sans-serif;letter-spacing:5px;font-size:clamp(11px,1.4vw,15px);color:var(--pow);margin-bottom:18px}
.hero__title{font-family:'Anton',sans-serif;line-height:.86;text-transform:uppercase;text-shadow:4px 4px 0 var(--ink),8px 8px 0 rgba(224,26,34,.55)}
.hero__title-line{display:block;font-size:clamp(2.4rem,9vw,6.5rem)}
.hero__title-line--big{font-family:'Bangers',cursive;font-size:clamp(3.4rem,15vw,11rem);letter-spacing:2px;
  background:linear-gradient(180deg,#fff 0%,var(--web-red) 55%,var(--crimson) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  text-shadow:none;filter:drop-shadow(5px 6px 0 rgba(0,0,0,.6))}
.hero__sub{margin:26px auto 0;max-width:560px;font-size:clamp(15px,1.8vw,19px);color:rgba(255,255,255,.86);line-height:1.6}
.hero__cta{display:inline-block;margin-top:34px;padding:15px 38px;font-family:'Anton',sans-serif;letter-spacing:2px;font-size:16px;
  background:var(--web-red);color:#fff;border-radius:40px;border:2px solid #fff;
  box-shadow:0 8px 30px rgba(224,26,34,.5);transition:transform .2s,box-shadow .2s}
.hero__cta:hover{transform:translateY(-3px) scale(1.03);box-shadow:0 14px 44px rgba(224,26,34,.7)}
.hero__burst{position:absolute;z-index:2;font-family:'Bangers',cursive;color:var(--pow);
  text-shadow:3px 3px 0 var(--ink);pointer-events:none;will-change:transform}
.hero__burst--1{top:22%;left:11%;font-size:clamp(2rem,6vw,4.5rem);transform:rotate(-14deg)}
.hero__burst--2{bottom:24%;right:9%;font-size:clamp(1.6rem,5vw,3.8rem);color:#fff;transform:rotate(11deg)}
.hero__scrollcue{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:4;width:26px;height:44px;border:2px solid rgba(255,255,255,.6);border-radius:16px;display:flex;justify-content:center;padding-top:8px}
.hero__scrollcue span{width:4px;height:9px;background:#fff;border-radius:3px;animation:cue 1.4s infinite}
@keyframes cue{0%{opacity:0;transform:translateY(-4px)}40%{opacity:1}100%{opacity:0;transform:translateY(12px)}}

/* ░░ ERA SECTIONS ░░ */
.era{position:relative;min-height:100vh;display:flex;align-items:center;padding:120px clamp(18px,4vw,44px);overflow:hidden}
.era::before{content:'';position:absolute;inset:0;background:url('../assets/halftone-background.png') center/cover;opacity:.14;mix-blend-mode:screen}
.era--classic{background:radial-gradient(circle at 70% 30%,#173a86 0%,#0a1330 60%,#060814 100%)}
.era--crimson{background:radial-gradient(circle at 25% 40%,#4a0d10 0%,#1a0708 65%,#0a0405 100%)}
.era--azure{background:radial-gradient(circle at 72% 45%,#0a4f78 0%,#062036 65%,#03101c 100%)}
.era--modern{background:radial-gradient(circle at 28% 35%,#33125e 0%,#160a2c 65%,#0a0518 100%)}
.era__panel{position:relative;z-index:2;width:var(--container);margin:0 auto;
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,5vw,70px);align-items:center}
.era__figure{aspect-ratio:3/4;width:100%;max-width:460px;margin:0 auto;will-change:transform;filter:drop-shadow(0 30px 50px rgba(0,0,0,.6))}
.era__figure svg{width:100%;height:100%;overflow:visible}
.era__num{font-family:'Bangers',cursive;font-size:clamp(1.4rem,3vw,2.4rem);color:var(--pow);letter-spacing:3px}
.era__title{font-family:'Anton',sans-serif;font-size:clamp(2.2rem,6vw,4.6rem);line-height:.92;text-transform:uppercase;margin:6px 0 4px;
  text-shadow:3px 3px 0 rgba(0,0,0,.55)}
.era--classic .era__title{color:#fff}
.era--crimson .era__title{color:var(--web-red)}
.era--azure .era__title{color:var(--azure)}
.era--modern .era__title{color:#b98bff}
.era__years{font-family:'Anton',sans-serif;letter-spacing:3px;font-size:clamp(13px,1.5vw,17px);color:var(--pow);text-transform:uppercase;margin-bottom:20px}
.era__body{font-size:clamp(15px,1.7vw,18px);line-height:1.75;color:rgba(255,255,255,.86);max-width:46ch;margin-bottom:26px}
.era__stats{list-style:none;display:flex;flex-direction:column;gap:12px;max-width:400px}
.era__stats li{display:flex;justify-content:space-between;gap:14px;padding:11px 16px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);font-size:14px}
.era__stats b{font-family:'Anton',sans-serif;letter-spacing:1px;text-transform:uppercase;color:var(--pow);font-weight:400}

/* ░░ LEGACY ░░ */
.legacy{position:relative;padding:120px clamp(18px,4vw,44px);text-align:center;
  background:linear-gradient(180deg,#0a0518,#120a24)}
.legacy__title{font-family:'Bangers',cursive;font-size:clamp(2.6rem,8vw,6rem);letter-spacing:3px;
  background:linear-gradient(90deg,var(--web-red),var(--pow),var(--sky-blue));
  -webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:50px}
.legacy__grid{width:var(--container);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.legacy__card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:34px 18px;
  display:flex;flex-direction:column;gap:8px;align-items:center;transition:transform .25s,border-color .25s}
.legacy__card:hover{transform:translateY(-6px);border-color:var(--pow)}
.legacy__big{font-family:'Anton',sans-serif;font-size:clamp(2.2rem,5vw,3.6rem);color:var(--pow)}
.legacy__card span:last-child{font-size:13px;letter-spacing:1px;text-transform:uppercase;opacity:.7}
.legacy__quote{margin:60px auto 0;max-width:720px;font-family:'Bangers',cursive;font-size:clamp(1.6rem,4vw,2.8rem);color:#fff;line-height:1.3;
  text-shadow:2px 2px 0 var(--web-red)}

/* ░░ FOOTER ░░ */
.footer{background:#060409;padding:70px clamp(18px,4vw,44px) 40px;text-align:center;border-top:1px solid rgba(255,255,255,.08)}
.footer__brand{font-family:'Anton',sans-serif;font-size:26px;letter-spacing:2px;margin-bottom:16px}
.footer__note{max-width:560px;margin:0 auto 24px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.6)}
.footer__links{display:flex;gap:22px;justify-content:center;flex-wrap:wrap;margin-bottom:24px}
.footer__links a{font-size:13px;letter-spacing:1.5px;text-transform:uppercase;opacity:.7;transition:opacity .2s}
.footer__links a:hover{opacity:1;color:var(--pow)}
.footer__copy{font-size:12px;color:rgba(255,255,255,.4)}

/* ░░ REVEAL DEFAULTS (visible by default; JS only adds motion) ░░ */

/* ░░ RESPONSIVE ░░ */
@media(max-width:860px){
  .nav__links{position:fixed;top:0;right:0;height:100vh;width:min(72vw,320px);flex-direction:column;justify-content:center;gap:30px;
    background:rgba(11,11,15,.97);backdrop-filter:blur(20px);transform:translateX(100%);transition:transform .35s;padding:40px}
  .nav__links.open{transform:translateX(0)}
  .nav__links a{font-size:20px}
  .nav__toggle{display:flex;z-index:160}
  .era__panel{grid-template-columns:1fr;text-align:center;gap:34px}
  .era__content--left{order:2}
  .era__figure{order:1;max-width:320px}
  .era__body,.era__stats{margin-left:auto;margin-right:auto}
  .era__stats li{justify-content:center;gap:10px}
  .legacy__grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:460px){
  .legacy__grid{grid-template-columns:1fr}
  .hero__burst--1{left:4%}.hero__burst--2{right:4%}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}